our products have stable performance , reasonable price and can be customized according to customers' needs . T TYPE COREOrdering Core System Availabe Material WM30,WM40,WN100Q,WN200T,WN300T,WN400T,WN500T e tcApplication EMI/RFI Suppression,Plus And Matching Transformer,Choke Coil,Input Filter etc ferrite toroidal cores